________ in the desert is very dangerous.

   A. Lost         B. To lose         C. Losing        D. Being lost

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科目：高中英語 來源：0123 期中題 題型：單選題

A 16-year-old male student had been _____ infected with bird flu in Hunan province, the
fourth case of human bird flu found in China.
[     ]
A. committed
B. confirmed
C. convinced
D. considered

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